Definition of Helcionella. Meaning of Helcionella. Synonyms of Helcionella

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Definition of Helcionella

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Meaning of Helcionella from wikipedia

- Helcionella is a genus of helcionellid, a fossil marine invertebrate animal that is considered to be a mollusk and may possibly be a gastropod. The s****...
- gastropods, or might not be gastropods at all. Early Cambrian species such as Helcionella, Barskovia, and Scenella are no longer considered gastropods, and the...
- marginiata – or unidentified comparable form †Hardyoides †Hastagnostus †Helcionella †Helcionella A – informal †Heliomeroides †Heliomeroides teres †Helopora †Hemirhodon...
- America. Teiichi KOBAYASHI (1987). "The Ancestry of the Cephalopoda: From Helcionella to Plectronoceras". Proceedings of the ****an Academy, Series B: Physical...
- †Gnathodus †Gravicalymene †Greenops †Hallipterus †Hardieopterus †Hazelia †Helcionella †Hexactinellid †Hindeodus †Holonema †Holopea †Holoptychius †Holoptychus...
- more derived. The Helconellidae (Wenz, 1938) represented by the genus Helcionella (Grabau & Shimer, 1909) more closely resembles the monoplacophoran ancestor...
- Cambrian (Terreneuvian) Zhujiaqing Formation  China A new genus for "Helcionella" nana Chen & Zhang (1980). Protonoetia manipurensis Sp. nov Valid Sijagurumayum...
- subsidua Bathyuriscus-Elrathina & Bolaspidella Zones. A brachiopod. Helcionella "H." arguta Bathyuriscus fimbriatus & Bolaspidella contracta Subzones...
- ( Idaho) A member of the family Helcionellidae. The type species is "Helcionella" aequa Resser (1939); genus also includes new species R. pipalukae. Shishania...
- costaricaensis. Helcionella histosia Sp. nov Valid Jacquet & Brock Early Cambrian Hawker Group  Australia A helcionelloid, a species of Helcionella. Huncalotis...